package com.houdoudou.supplier.bean;

public class Common {

	 public static boolean isNumeric(String str){ 
		   for (int i = str.length();--i>=0;){ 
		   if (!Character.isDigit(str.charAt(i))){
		   return false; 
		   } 
		   }
		   return true; 
		   } 
}
